Retroreflective definition

Retroreflective means when light rays strike a surface and are redirected directly back to its source. It is the most commonly used means of making signs visible to the driver at night.
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Retroreflective means where a light ray is returned in a narrow band back to its source, i.e. in the direction from which it came;
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Examples of Retroreflective in a sentence

  • Retro-reflective devices can be considered as belonging to the same type if they have one or more "retro-reflecting optical units" which are identical with those of the standard model, or if not identical are symmetrical and suitable for mounting one on the left and one on the right side of the vehicle, and if their other parts differ from those of the standard model only in ways not affecting the properties to which this Regulation applies.

  • The colour and materials are to conform to AS/NZS 1906.4:1997 Retroreflective materials and devices for road traffic control purposes: Part 4: High- visibility material for safety garments.

  • Figure A4-II 1: First Axis I: Illumination Axis α: Observation angle 2: Second Axis O: Observation Axis ß1, ß2: Entrance angles R: Reference Axis ε: Rotation angle P: Retro-reflective material Figure A4-II represents a Goniometer mechanism embodying the CIE angular system for specifying and measuring retro-reflective device and marking materials.

  • The colour and materials are to conform to AS/NZS 1906.4:1997 Retroreflective materials and devices for road traffic control purposes: Part 4: High-visibility material for safety garments.

  • Retro-reflective marking materials (class C) shall be white, yellow or red.

  • Retro-reflective distinctive markings and/or graphics (classes D and E) may be of any colour.

  • This Regulation applies to retro-reflective devices as: • Retro-reflectors of the Classes IA, IB, IIIA, IIIB and IVA • Retro-reflective Marking Materials of the Classes C, D, E and F, D/E • Retro-reflective Marking Plates for Heavy and Long Vehicles (HLV) of the Classes 1, 2, 3, 4 and 5 • Retro-reflective Marking Plates for Slow Moving Vehicles (SMV) of the Classes 1 and 2 • Advance Warning Triangles (AWT) of Type 1 and 2.

  • Retro-reflective raised pavement markers (RPM’s) shall be placed and/or maintained on intermediate pavements surfaces on all interstate highways that are open to traffic.

  • Retroreflective raised pavement markers (RPMs) shall be placed as listed below for all asphaltic concrete pavements before the roadway is open to traffic, unless noted this section.

  • Retro-reflective raised pavement markers (RPMs) shall be placed and/or maintained on intermediate pavement surfaces on all multi-lane divided highways that are opened to traffic when these roadways are being widened or reconstructed.

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